Module Biocaml_accu.Counter


module Counter: sig .. end

type 'a t = 'a Biocaml_accu.counter 
val create : ?n:int -> unit -> 'a t
val add : 'a Biocaml_accu.counter -> 'a -> int -> unit
val tick : 'a Biocaml_accu.counter -> 'a -> unit